linux-kernel - [PATCH v4 4/9] ARM: STi: DT: STiH407: Add Device Tree node for the LPC

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Message-Id: <1424872349-4155-5-git-send-email-lee.jones@linaro.org>
Date:	Wed, 25 Feb 2015 13:52:24 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	rtc-linux@...glegroups.com, wim@...ana.be,
	linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
	linux@...ck-us.net, david.paris@...com, a.zummo@...ertech.it
Cc:	lee.jones@...aro.org, kernel@...inux.com
Subject: [PATCH v4 4/9] ARM: STi: DT: STiH407: Add Device Tree node for the LPC

On current ST platforms the LPC controls a number of functions.  This
patch enables support for the LPC Watchdog and LPC RTC devices on LPC1
and LPC2 respectively.

Signed-off-by: David Paris <david.paris@...com>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 arch/arm/boot/dts/stih407-family.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index c06a546..2b2315d 100644
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -7,6 +7,7 @@
  * publishhed by the Free Software Foundation.
  */
 #include "stih407-pinctrl.dtsi"
+#include <dt-bindings/mfd/st-lpc.h>
 #include <dt-bindings/reset-controller/stih407-resets.h>
 / {
 	#address-cells = <1>;
@@ -336,5 +337,24 @@
 				resets = <&softreset STIH407_MIPHY2_SOFTRESET>;
 			};
 		};
+
+		/* Watchdog and Real-Time Clock */
+		lpc@...7000 {
+			compatible = "st,stih407-lpc";
+			reg = <0x8787000 0x1000>;
+			interrupts = <GIC_SPI 129 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&clk_s_d3_flexgen CLK_LPC_0>;
+			timeout-sec = <120>;
+			st,syscfg = <&syscfg_core>;
+			st,lpc-mode = <ST_LPC_MODE_WDT>;
+		};
+
+		lpc@...8000 {
+			compatible = "st,stih407-lpc";
+			reg = <0x8788000 0x1000>;
+			interrupts = <GIC_SPI 130 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&clk_s_d3_flexgen CLK_LPC_1>;
+			st,lpc-mode = <ST_LPC_MODE_RTC>;
+		};
 	};
 };
-- 
1.9.1

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